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            <ol class="post-toc"><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#案例笔记-一个基于Vue-js的简单信息管理页"><span class="post-toc-number">1.</span> <span class="post-toc-text">案例笔记 : 一个基于Vue.js的简单信息管理页</span></a></li></ol>
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        <h1 class="post-card-title">一个基于Vue的简单信息管理页</h1>
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            <time class="post-time" title="2019-07-24 20:02:22" datetime="2019-07-24T20:02:22.000Z"  itemprop="datePublished">2019-07-24</time>

            


            

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            <h2 id="案例笔记-一个基于Vue-js的简单信息管理页"><a href="#案例笔记-一个基于Vue-js的简单信息管理页" class="headerlink" title="案例笔记 : 一个基于Vue.js的简单信息管理页"></a>案例笔记 : 一个基于Vue.js的简单信息管理页</h2><p><em>初步学习完<code>Vue.js</code>的基本语法、数据绑定视图机制、事件绑定、自定义指令、过滤器后,来尝试写一个总结案例吧~ 该案例的主要功能是一个简单的信息管理 : 增加,删除,查找. 该程序其它版本见 : <a href="https://github.com/YUbuntu0109/vue-learning" target="_blank" rel="noopener">https://github.com/YUbuntu0109/vue-learning</a></em></p>
<p><em>(simple demo program v1.2/demo-1.2.html)程序如下所示 :</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">&lt;!DOCTYPE html&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">html</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">head</span>&gt;</span></span><br><span class="line">		<span class="tag">&lt;<span class="name">meta</span> <span class="attr">charset</span>=<span class="string">"utf-8"</span>&gt;</span></span><br><span class="line">		<span class="tag">&lt;<span class="name">script</span> <span class="attr">src</span>=<span class="string">"../vue.js"</span>&gt;</span><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br><span class="line">		<span class="tag">&lt;<span class="name">link</span> <span class="attr">rel</span>=<span class="string">"stylesheet"</span> <span class="attr">href</span>=<span class="string">"../simple%20demo%20program%20v1.0/resources/bootstrap.css"</span> /&gt;</span></span><br><span class="line">		<span class="tag">&lt;<span class="name">title</span>&gt;</span>a simple demo program v1.2<span class="tag">&lt;/<span class="name">title</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;/<span class="name">head</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">body</span>&gt;</span></span><br><span class="line">		<span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">			<span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"panel panel-primary"</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"panel-heading"</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">h3</span> <span class="attr">class</span>=<span class="string">"panel-title"</span>&gt;</span>SIMPLE DEMO PROGRAM FOR VUE<span class="tag">&lt;/<span class="name">h3</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"panel-body form-inline"</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">label</span>&gt;</span></span><br><span class="line">						ID : <span class="tag">&lt;<span class="name">input</span> <span class="attr">type</span>=<span class="string">"text"</span> <span class="attr">class</span>=<span class="string">"form-control"</span> <span class="attr">v-model</span>=<span class="string">"id"</span> /&gt;</span></span><br><span class="line">					<span class="tag">&lt;/<span class="name">label</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">label</span> <span class="attr">style</span>=<span class="string">"padding-left: 20px;"</span>&gt;</span></span><br><span class="line">						NAME : <span class="tag">&lt;<span class="name">input</span> <span class="attr">type</span>=<span class="string">"text"</span> <span class="attr">class</span>=<span class="string">"form-control"</span> <span class="attr">v-model</span>=<span class="string">"name"</span> @<span class="attr">keyup.enter</span>=<span class="string">"add()"</span> /&gt;</span></span><br><span class="line">					<span class="tag">&lt;/<span class="name">label</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">label</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">button</span> <span class="attr">class</span>=<span class="string">"btn btn-primary"</span> <span class="attr">style</span>=<span class="string">"margin-left:20px ;"</span> @<span class="attr">click</span>=<span class="string">"add()"</span>&gt;</span>ADD<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;/<span class="name">label</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">label</span> <span class="attr">style</span>=<span class="string">"padding-left: 213px;"</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">button</span> <span class="attr">class</span>=<span class="string">"btn btn-info"</span>&gt;</span>SEARCH BY NAME<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">input</span> <span class="attr">type</span>=<span class="string">"text"</span> <span class="attr">class</span>=<span class="string">"form-control"</span> <span class="attr">v-model</span>=<span class="string">"keyword"</span> <span class="attr">v-focus</span> <span class="attr">v-color</span>=<span class="string">"'blueviolet'"</span> /&gt;</span></span><br><span class="line">					<span class="tag">&lt;/<span class="name">label</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">			<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">			<span class="tag">&lt;<span class="name">table</span> <span class="attr">class</span>=<span class="string">"table table-bordered table-hover table-striped"</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;<span class="name">thead</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">tr</span> <span class="attr">class</span>=<span class="string">"success"</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">th</span>&gt;</span>ID<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">th</span>&gt;</span>NAME<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">th</span> <span class="attr">style</span>=<span class="string">"width: 328px;"</span>&gt;</span>CTIME<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">th</span>&gt;</span>OPERATION<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;/<span class="name">tr</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;/<span class="name">thead</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;<span class="name">tbody</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;<span class="name">tr</span> <span class="attr">v-for</span>=<span class="string">"user in search(keyword)"</span> <span class="attr">v-bind:key</span>=<span class="string">"user.id"</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123;user.id&#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123;user.name&#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123;user.ctime | dateStrFilter('')&#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;<span class="name">td</span>&gt;</span><span class="tag">&lt;<span class="name">button</span> <span class="attr">class</span>=<span class="string">"btn btn-danger"</span> @<span class="attr">click</span>=<span class="string">"del(user.id)"</span>&gt;</span>DELETE<span class="tag">&lt;/<span class="name">buttom</span>&gt;</span></span><br><span class="line">						<span class="tag">&lt;/<span class="name">td</span>&gt;</span></span><br><span class="line">					<span class="tag">&lt;/<span class="name">tr</span>&gt;</span></span><br><span class="line">				<span class="tag">&lt;/<span class="name">tbody</span>&gt;</span></span><br><span class="line">			<span class="tag">&lt;/<span class="name">table</span>&gt;</span></span><br><span class="line">		<span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line">		<span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">			Vue.filter(<span class="string">'dateStrFilter'</span>, <span class="function"><span class="keyword">function</span><span class="params">(dateStr, datePattern = <span class="string">""</span>)</span> </span>&#123; <span class="comment">//the default is null</span></span></span><br><span class="line"><span class="javascript">				<span class="keyword">var</span> newDateStr = <span class="keyword">new</span> <span class="built_in">Date</span>(dateStr)</span></span><br><span class="line"><span class="actionscript">				<span class="keyword">var</span> year = newDateStr.getFullYear()</span></span><br><span class="line"><span class="actionscript">				<span class="keyword">var</span> month = (newDateStr.getMonth() + <span class="number">1</span>).toString().padStart(<span class="number">2</span>, <span class="string">'0'</span>) <span class="comment">//padStart():complete the length of the string</span></span></span><br><span class="line"><span class="actionscript">				<span class="keyword">var</span> date = newDateStr.getDate().toString().padStart(<span class="number">2</span>, <span class="string">'0'</span>)</span></span><br><span class="line"><span class="actionscript">				<span class="keyword">var</span> hour = newDateStr.getHours().toString().padStart(<span class="number">2</span>, <span class="string">'0'</span>)</span></span><br><span class="line"><span class="actionscript">				<span class="keyword">var</span> m = newDateStr.getMinutes().toString().padStart(<span class="number">2</span>, <span class="string">'0'</span>)</span></span><br><span class="line"><span class="actionscript">				<span class="keyword">var</span> s = newDateStr.getSeconds().toString().padStart(<span class="number">2</span>, <span class="string">'0'</span>)</span></span><br><span class="line"></span><br><span class="line"><span class="actionscript">				<span class="keyword">if</span> (datePattern.toLowerCase() === <span class="string">'yyyy-mm-dd'</span>) &#123;</span></span><br><span class="line"><span class="javascript">					<span class="keyword">return</span> <span class="string">`<span class="subst">$&#123;year&#125;</span>-<span class="subst">$&#123;month&#125;</span>-<span class="subst">$&#123;date&#125;</span>`</span></span></span><br><span class="line"><span class="actionscript">				&#125; <span class="keyword">else</span> &#123;</span></span><br><span class="line"><span class="javascript">					<span class="keyword">return</span> <span class="string">`<span class="subst">$&#123;year&#125;</span>-<span class="subst">$&#123;month&#125;</span>-<span class="subst">$&#123;date&#125;</span> <span class="subst">$&#123;hour&#125;</span>:<span class="subst">$&#123;m&#125;</span>:<span class="subst">$&#123;s&#125;</span>`</span></span></span><br><span class="line">				&#125;</span><br><span class="line">			&#125;);</span><br><span class="line"></span><br><span class="line"><span class="actionscript">			Vue.directive(<span class="string">'focus'</span>, &#123;</span></span><br><span class="line"><span class="actionscript">				inserted: <span class="function"><span class="keyword">function</span><span class="params">(el)</span> </span>&#123;</span></span><br><span class="line">					el.focus()</span><br><span class="line">				&#125;</span><br><span class="line">			&#125;);</span><br><span class="line"><span class="actionscript">			Vue.directive(<span class="string">'color'</span>, &#123;</span></span><br><span class="line"><span class="actionscript">				bind: <span class="function"><span class="keyword">function</span><span class="params">(el, colorStr)</span> </span>&#123;</span></span><br><span class="line">					el.style.color = colorStr.value</span><br><span class="line">				&#125;</span><br><span class="line">			&#125;);</span><br><span class="line"></span><br><span class="line"><span class="actionscript">			<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">				el: <span class="string">'#app'</span>,</span></span><br><span class="line">				data: &#123;</span><br><span class="line"><span class="actionscript">					id: <span class="string">''</span>,</span></span><br><span class="line"><span class="actionscript">					name: <span class="string">''</span>,</span></span><br><span class="line"><span class="actionscript">					keyword: <span class="string">''</span>,</span></span><br><span class="line">					users: [&#123;</span><br><span class="line">							id: 1,</span><br><span class="line"><span class="actionscript">							name: <span class="string">'YUHUI001'</span>,</span></span><br><span class="line"><span class="javascript">							ctime: <span class="keyword">new</span> <span class="built_in">Date</span>()</span></span><br><span class="line">						&#125;,</span><br><span class="line">						&#123;</span><br><span class="line">							id: 2,</span><br><span class="line"><span class="actionscript">							name: <span class="string">'YUHUI002'</span>,</span></span><br><span class="line"><span class="javascript">							ctime: <span class="keyword">new</span> <span class="built_in">Date</span>()</span></span><br><span class="line">						&#125;,</span><br><span class="line">						&#123;</span><br><span class="line">							id: 3,</span><br><span class="line"><span class="actionscript">							name: <span class="string">'YUHUI003'</span>,</span></span><br><span class="line"><span class="javascript">							ctime: <span class="keyword">new</span> <span class="built_in">Date</span>()</span></span><br><span class="line">						&#125;</span><br><span class="line">					]</span><br><span class="line">				&#125;,</span><br><span class="line">				methods: &#123;</span><br><span class="line">					add() &#123;</span><br><span class="line"><span class="actionscript">						<span class="keyword">var</span> user = &#123;</span></span><br><span class="line"><span class="actionscript">							id: <span class="keyword">this</span>.id,</span></span><br><span class="line"><span class="actionscript">							name: <span class="keyword">this</span>.name,</span></span><br><span class="line"><span class="javascript">							ctime: <span class="keyword">new</span> <span class="built_in">Date</span>()</span></span><br><span class="line">						&#125;</span><br><span class="line"><span class="actionscript">						<span class="comment">//The elements to add to the end of the array. </span></span></span><br><span class="line"><span class="actionscript">						<span class="keyword">this</span>.users.push(user)</span></span><br><span class="line"><span class="actionscript">						<span class="keyword">this</span>.id = <span class="keyword">this</span>.name = <span class="string">''</span></span></span><br><span class="line">					&#125;,</span><br><span class="line">					del(id) &#123;</span><br><span class="line"><span class="javascript">						<span class="keyword">var</span> index = <span class="keyword">this</span>.users.findIndex(<span class="function"><span class="params">user</span> =&gt;</span> &#123;</span></span><br><span class="line"><span class="actionscript">							<span class="keyword">if</span> (user.id == id) &#123;</span></span><br><span class="line"><span class="actionscript">								<span class="keyword">return</span> <span class="literal">true</span>;</span></span><br><span class="line">							&#125;</span><br><span class="line">						&#125;);</span><br><span class="line"><span class="actionscript">						<span class="comment">//The elements to add to the array.</span></span></span><br><span class="line"><span class="actionscript">						<span class="comment">//If you don't specify any elements, splice simply removes elements from the array. </span></span></span><br><span class="line"><span class="actionscript">						<span class="keyword">this</span>.users.splice(index, <span class="number">1</span>)</span></span><br><span class="line">					&#125;,</span><br><span class="line">					search(keyword) &#123;</span><br><span class="line"><span class="actionscript">						<span class="keyword">var</span> newUsers = []</span></span><br><span class="line"><span class="javascript">						<span class="keyword">this</span>.users.forEach(<span class="function"><span class="params">user</span> =&gt;</span> &#123;</span></span><br><span class="line"><span class="actionscript">							<span class="comment">//If the keyword is null, it returns 0.</span></span></span><br><span class="line"><span class="actionscript">							<span class="keyword">if</span> (user.name.indexOf(keyword) != <span class="number">-1</span>) &#123;</span></span><br><span class="line">								newUsers.push(user)</span><br><span class="line">							&#125;</span><br><span class="line">						&#125;);</span><br><span class="line"><span class="actionscript">						<span class="keyword">return</span> newUsers;</span></span><br><span class="line">					&#125;</span><br><span class="line">				&#125;</span><br><span class="line">			&#125;);</span><br><span class="line">		<span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;/<span class="name">body</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">html</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<p><em>程序运行效果示例图如下 :</em><br><figure class="image-bubble">
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                    <img src="/2019/07/24/一个基于Vue的简单信息管理页/a-simple-demo-program-for-vue-v1.2.PNG" alt title>
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            </figure></p>

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